The popular Giants broadcaster was calling a Mother's Day game against Colorado two years ago when the TV camera focused in on four excited and pom-pom-waving fans during a break in the action.

"Gamer Babes from Half Moon Bay," Krukow said on air.

A group was born: SF Giants Gamer Babes. Its ranks have swelled from those original four, and the "Bucks" crew spotted two members by the Willie Mays statue before a recent game at AT&T Park. They had planned and coordinated their outfits for about a month.

Meet Emma Dewit of Pacifica, Calif., a political science major at City College of San Francisco. She brought a sign that read: "Orange You Glad It's Friday."

Meet Georgie DeAntoni, an anthropology major at Cal-Berkeley. Her sign, for the day of a Madison Bumgarner start, read: "Gamer Babes Are Mad For Mad Bum."

With some trepidation, the stepcousins agreed to a shot at what could be a little change toward tuition, a chance to show their Gamer status. Maybe Brandon Crawford would even see this video some day, read this article and want to recognize them. Gradually they started working on a perfect game, flicking stumpers aside, and you'll have to watch Episode 5 of this second season of "Bucks" to see how far it went.

"The whole 'Bucks' experience was awesome," said DeAntoni, 19. "We almost turned it down because we thought we'd be terrible at it, but we ended up having an absolute blast. I guess wearing those ridiculously festive outfits and making signs paid off."

"Bucks" is hosted by Jeremy Brisiel, and you might be a part of it this season when you least expect it. Fans at the ballpark interact with MLB.com's studio through the magic of technology in conjunction with game action inside. In creating a new experience for fans, MLB.com is giving people a chance to earn bucks while they spend bucks at the ballpark.

"I initially didn't want to do it, because I don't like being filmed," Dewit said. "But I'm glad I did. ... We know everything."

Contestants are asked a trivia question -- general knowledge and baseball -- on each pitch during a half-inning of baseball. Get the question correct and win money. Get the question wrong and it's a strike. Three strikes and you're out, and strike two came pretty early on this one.

The questions' difficulty and value increase with the number of outs in the on-field action: $5 easy questions to start, $10 medium-difficulty questions after one out, $20 hard questions after two outs. If the contestant lasts longer than the team's at-bat, they win the bucks in their bank.

Topics covered in this episode include North American geography, purple dinosaurs, 1970s TV shows, AT&T Park quirks, holidays, children's toys, famous music families, flying insects, astronauts, Giants postseason history, 1980s songs, movie stars, 2012 Giants pitching statistics and foxes. They were not expecting to be part of a "Bucks" singalong, in this case a little Quiet Riot, but you never know what's coming when you go to a ballpark.

"It was really nerve-wracking and really, really fun and awesome," DeAntoni said. It was even better than her favorite AT&T Park feature, garlic fries. "I'm happy we did it."

After all, they are Gamer Babes.

So what's a Gamer Babe, exactly? What did Krukow see that day?

"Girls who like baseball," Dewit said. "Especially Giants baseball. Because they're the best team, you know."

Fans are chosen randomly by the "Bucks" crew, and new episodes are being released every Tuesday and Thursday again this season.

The "Bucks" crew has been to more than half of all Major League ballparks and is working its way through the full list. In addition to the Giants, teams visited include the Angels, Astros, Athletics, Cardinals, Cubs, Dodgers, Marlins, Padres, Red Sox, Reds, Royals, Orioles, Tigers, White Sox and Yankees. Bookmark MLB.com/bucks and be on the lookout for the "Bucks" crew at your ballpark.

Mark Newman is enterprise editor of MLB.com. Read and join other baseball fans on his MLB.com community blog. This story was not subject to the approval of Major League Baseball or its clubs.